Author Topic: Shaders for the MediaVPs  (Read 44830 times)

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Offline The E

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Re: Shaders for the MediaVPs
No, this has nothing to do with Unreal.

It might have something to do with that cockpitmod thing. Does the cockpitmod include an alternate version of the tauret model? How does the cockpitmod alter the tauret tbl entry?

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Re: Shaders for the MediaVPs
No, the only things in cockpit mod are Terran pofs from the AoA cockpit pack. Just to be sure I removed Cockpit mod and nothing changed.
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Offline The E

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Re: Shaders for the MediaVPs
Code: [Select]
Searching root pack 'C:\Games\FreeSpace2\mediavps_3612\MV_Assets.vp' ... 1527 files
Searching root pack 'C:\Games\FreeSpace2\mediavps_3612\MV_Effects.vp' ... 1876 files
Searching root pack 'C:\Games\FreeSpace2\mediavps_3612\MV_Root.vp' ... 94 files

These files are corrupted and need to be replaced.
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Re: Shaders for the MediaVPs
Well I redownloaded the files you suggested and the problem with the Tauret remains. The game plays fine though. The white boxes came back so I installed the older 10-10 ATI drivers and that fixed it.
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Offline The E

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Re: Shaders for the MediaVPs
The render engine improvements discussion has been split out and moved here: http://www.hard-light.net/forums/index.php?topic=75502.0
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Offline Kolgena

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Re: Shaders for the MediaVPs
Does -spec_exp still do anything under these shaders? I tried 0, 2, and 994, and they all look pretty identical to me in the ship lab. (I'm assuming the sun light actually listens to the flag)

 

Offline Zacam

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Re: Shaders for the MediaVPs

-spec_exp does indeed work, but you'll want to re-read the Wiki on that one.

-spec_static is what controls the lighting from Suns. And it won't show nearly as much in the Lab as the Lab isn't lit by a "Sun" (afaik).
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Offline Kolgena

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Re: Shaders for the MediaVPs
Oh, I meant exactly that. I checked via the ship lab, which I was aware is a sun.

The sun's spot sizes didn't show much change, which is why I asked.

 

Offline The E

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Re: Shaders for the MediaVPs
Uhh, no. The light in the lab is NOT a sun. It's just a light.
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Offline Kolgena

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Re: Shaders for the MediaVPs
Now, I could be wrong, but are multiple lights supposed to be able to react with normal maps? I remember back when the shaders were standalone effect files, that such was the case. Explosions would show normal map detail, and everything was dazzling.

I think at some point the nightlies had the shaders integrated into them, so I thought that it would be okay to get rid of the standalone shaders if I am using the latest nightly. Now, I could be wrong, and my eyes are just tired (or my lighting settings are poor) but as of right now, weapons light and explosions don't seem to affect the normal map. They're using the old interpolation-between-vertex lighting model that we had before.

Anyone else notice this?

Attached are two examples. Look especially at the ship hull at the left of the image, but also at the Karunas.

[attachment deleted by ninja]
« Last Edit: June 27, 2011, 11:02:56 pm by Kolgena »

 

Offline chief1983

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Re: Shaders for the MediaVPs
Can you post a debug log from a run where this would happen?  Also, do they seem to be working elsewhere, in the ship lab, etc?
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Offline Kolgena

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Re: Shaders for the MediaVPs
Well, I put these files back in the effects folder, and this is what it looks like now (back to fragment lighting with normal maps). Clearly a huge difference, so something's up.

main-f.sdr
Code: [Select]
#ifdef FLAG_LIGHT
uniform int n_lights;
#endif

#ifdef FLAG_DIFFUSE_MAP
uniform sampler2D sBasemap;
#endif

#ifdef FLAG_GLOW_MAP
uniform sampler2D sGlowmap;
#endif

#ifdef FLAG_SPEC_MAP
uniform sampler2D sSpecmap;
#endif

#ifdef FLAG_ENV_MAP
uniform samplerCube sEnvmap;
uniform bool alpha_spec;
varying vec3 envReflect;
#endif

#ifdef FLAG_NORMAL_MAP
uniform sampler2D sNormalmap;
varying mat3 tbnMatrix;
#endif

#ifdef FLAG_FOG
varying float fogDist;
#endif

varying vec4 position;
varying vec3 lNormal;

#if SHADER_MODEL == 2
  #define MAX_LIGHTS 2
#else
  #define MAX_LIGHTS 8
#endif

#define SPEC_INTENSITY_POINT 4.3 // Point light
#define SPEC_INTENSITY_DIRECTIONAL 1.5 // Directional light
#define SPECULAR_FACTOR 1.75
#define SPECULAR_ALPHA 0.1
#define SPEC_FACTOR_NO_SPEC_MAP 0.6
#define ENV_ALPHA_FACTOR 0.3
#define GLOW_MAP_INTENSITY 1.5
#define AMBIENT_LIGHT_BOOST 1.0

void main()
{
vec3 eyeDir = vec3(normalize(-position).xyz); // Camera is at (0,0,0) in ModelView space
vec4 lightAmbientDiffuse = vec4(0.0, 0.0, 0.0, 1.0);
vec4 lightDiffuse = vec4(0.0, 0.0, 0.0, 1.0);
vec4 lightAmbient = vec4(0.0, 0.0, 0.0, 1.0);
vec4 lightSpecular = vec4(0.0, 0.0, 0.0, 1.0);
vec2 texCoord = gl_TexCoord[0].xy;

 #ifdef FLAG_LIGHT
  #ifdef FLAG_NORMAL_MAP
// Normal map - convert from DXT5nm
vec3 normal;
normal.rg = (texture2D(sNormalmap, texCoord).ag * 2.0) - 1.0;
normal.b = sqrt(1.0 - dot(normal.rg, normal.rg));
normal = normalize(tbnMatrix * normal);
  #else
vec3 normal = lNormal;
  #endif

vec3 lightDir;
lightAmbient = gl_FrontMaterial.emission + (gl_LightModel.ambient * gl_FrontMaterial.ambient);

#pragma optionNV unroll all
for (int i = 0; i < MAX_LIGHTS; ++i) {
  #if SHADER_MODEL > 2
if (i > n_lights)
break;
  #endif
float specularIntensity = 1.0;
float attenuation = 1.0;

// Attenuation and light direction
  #if SHADER_MODEL > 2
if (gl_LightSource[i].position.w == 1.0) {
  #else
if (gl_LightSource[i].position.w == 1.0 && i != 0) {
  #endif
// Positional light source
float dist = distance(gl_LightSource[i].position.xyz, position.xyz);

float spotEffect = 1.0;

attenuation = spotEffect / (gl_LightSource[i].constantAttenuation + (gl_LightSource[i].linearAttenuation * dist) + (gl_LightSource[i].quadraticAttenuation * dist * dist));

lightDir = normalize(gl_LightSource[i].position.xyz - position.xyz);

specularIntensity = SPEC_INTENSITY_POINT; // Point light
} else {
// Directional light source
lightDir = normalize(gl_LightSource[i].position.xyz);

specularIntensity = SPEC_INTENSITY_DIRECTIONAL; // Directional light
}

// Ambient and Diffuse
lightAmbient += (gl_FrontLightProduct[i].ambient * attenuation);
lightDiffuse += ((gl_FrontLightProduct[i].diffuse * max(dot(normal, lightDir), 0.0)) * attenuation);

// Specular
float NdotHV = clamp(dot(normal, normalize(eyeDir + lightDir)), 0.0, 1.0);
lightSpecular += ((gl_FrontLightProduct[i].specular * pow(max(0.0, NdotHV), gl_FrontMaterial.shininess)) * attenuation) * specularIntensity;
}

lightAmbientDiffuse = lightAmbient + lightDiffuse;
 #else
lightAmbientDiffuse = gl_Color;
lightSpecular = gl_SecondaryColor;
 #endif

 #ifdef FLAG_DIFFUSE_MAP
 // Base color
vec4 baseColor = texture2D(sBasemap, texCoord);
 #else
vec4 baseColor = gl_Color;
 #endif
 
vec4 fragmentColor;
fragmentColor.rgb = baseColor.rgb * max(lightAmbientDiffuse.rgb * AMBIENT_LIGHT_BOOST, gl_LightModel.ambient.rgb - 0.425);
fragmentColor.a = baseColor.a;

 #ifdef FLAG_SPEC_MAP
 // Spec color
fragmentColor.rgb += lightSpecular.rgb * (texture2D(sSpecmap, texCoord).rgb * SPECULAR_FACTOR);
fragmentColor.a += (dot(lightSpecular.a, lightSpecular.a) * SPECULAR_ALPHA);
 #else
fragmentColor.rgb += lightSpecular.rgb * (baseColor.rgb * SPEC_FACTOR_NO_SPEC_MAP);
 #endif

 #ifdef FLAG_ENV_MAP
 // Env color
vec3 envIntensity = (alpha_spec) ? vec3(texture2D(sSpecmap, texCoord).a) : texture2D(sSpecmap, texCoord).rgb;
fragmentColor.a += (dot(textureCube(sEnvmap, envReflect).rgb, textureCube(sEnvmap, envReflect).rgb) * ENV_ALPHA_FACTOR);
fragmentColor.rgb += textureCube(sEnvmap, envReflect).rgb * envIntensity;
 #endif

 #ifdef FLAG_GLOW_MAP
 // Glow color
fragmentColor.rgb += texture2D(sGlowmap, texCoord).rgb * GLOW_MAP_INTENSITY;
 #endif

 #ifdef FLAG_FOG
fragmentColor.rgb = mix(fragmentColor.rgb, gl_Fog.color.rgb, fogDist);
 #endif

gl_FragColor = fragmentColor;
}

main-v.sdr
Code: [Select]
#ifdef FLAG_ENV_MAP
uniform mat4 envMatrix;
varying vec3 envReflect;
#endif

#ifdef FLAG_NORMAL_MAP
varying mat3 tbnMatrix;
#endif

#ifdef FLAG_FOG
varying float fogDist;
#endif

varying vec4 position;
varying vec3 lNormal;

void main()
{
gl_TexCoord[0] = gl_MultiTexCoord0;
gl_Position = ftransform();
gl_FrontColor = gl_Color;
gl_FrontSecondaryColor = vec4(0.0, 0.0, 0.0, 1.0);

 // Transform the normal into eye space and normalize the result.
position = gl_ModelViewMatrix * gl_Vertex;
vec3 normal = normalize(gl_NormalMatrix * gl_Normal);
lNormal = normal;

 #ifdef FLAG_NORMAL_MAP
 // Setup stuff for normal maps
vec3 t = normalize(gl_NormalMatrix * gl_MultiTexCoord1.xyz);
vec3 b = cross(normal, t) * gl_MultiTexCoord1.w;
tbnMatrix = mat3(t, b, normal);
 #endif

 #ifdef FLAG_ENV_MAP
 // Environment mapping reflection vector.
envReflect = reflect(position.xyz, normal);
envReflect = vec3(envMatrix * vec4(envReflect, 0.0));
envReflect = normalize(envReflect);
 #endif

 #ifdef FLAG_FOG
fogDist = clamp((gl_Position.z - gl_Fog.start) * 0.75 * gl_Fog.scale, 0.0, 1.0);
 #endif

 #ifdef __GLSL_CG_DATA_TYPES
 // Check necessary for ATI specific behavior
gl_ClipVertex = (gl_ModelViewMatrix * gl_Vertex);
 #endif
}


Now with Debug log WITHOUT the shaders in effects.

[attachment deleted by ninja]
« Last Edit: June 27, 2011, 11:45:59 pm by Kolgena »

 

Offline The E

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Re: Shaders for the MediaVPs
Given that the shaders in the exe are identical to the shaders you posted here, I have no clue what's going on. To be honest, those first screenshots posted look like they do not have any normal mapping active at all, which is a bit baffling.

Also, if you removed the custom per-fragment shaders from the mediavps directory, then the exe will not fall back onto the built-in defaults, but onto the shaders in mv_root, which are still the old per-vertex shaders.
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Offline Kolgena

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Re: Shaders for the MediaVPs
That's probably the explanation. I'm using the mv_root from the release thread, which I'm quite sure contains the old shaders.

If that's the case, it's probably worth mentioning to people that if they're using these shaders, that it's temporarily not okay to get rid of them without reverting.

 

Offline The E

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Re: Shaders for the MediaVPs
Quote from:
If that's the case, it's probably worth mentioning to people that if they're using these shaders, that it's temporarily not okay to get rid of them without reverting.

I have no idea what you said there. Seriously, no idea how to parse that sentence.
If I'm just aching this can't go on
I came from chasing dreams to feel alone
There must be changes, miss to feel strong
I really need lifе to touch me
--Evergrey, Where August Mourns

 

Offline Kolgena

  • 211
Re: Shaders for the MediaVPs
lol my bad.

If it's the case that having mv_root will force loading of the old shaders instead of letting the .exe use its new ones, then it's probably not good that we're giving out advice telling people that it's okay to get rid of the standalone shaders in the effects folder.

Is that somewhat better?

 

Offline The E

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Re: Shaders for the MediaVPs
Uhhh, no?

Remember, this is a topic for advanced modders. People who have an understanding of how FSO file loading works. People who realize that the built-in shaders are only used when no other shaders can be found.
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Offline Valathil

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Re: Shaders for the MediaVPs
So have you noticed how the environment maps on the ships are always flat on the poly's like they reflect from a perfect mirror? Really doesn't work together well with bump mapped surfaces. This is especially noticeable in mods like WoD where you have SHINY ships. So after a little tweaking from my end here is the fragment shader for environment map displacing by bump map. This looks S W E E T in WoD, just try it (PROTIP: Ray Mark 3 in F3 Lab). Feel free to use and abuse this just thought I'd pitch in with a small idea to make those sweet shaders even better. I hope I used the newest version of the shaders as a baseline but the patch is simple enough so porting it should be easy.

Code: [Select]
#ifdef FLAG_LIGHT
uniform int n_lights;
#endif

#ifdef FLAG_DIFFUSE_MAP
uniform sampler2D sBasemap;
#endif

#ifdef FLAG_GLOW_MAP
uniform sampler2D sGlowmap;
#endif

#ifdef FLAG_SPEC_MAP
uniform sampler2D sSpecmap;
#endif

#ifdef FLAG_ENV_MAP
uniform samplerCube sEnvmap;
uniform bool alpha_spec;
varying vec3 envReflect;
#endif

#ifdef FLAG_NORMAL_MAP
uniform sampler2D sNormalmap;
varying mat3 tbnMatrix;
#endif

#ifdef FLAG_FOG
varying float fogDist;
#endif

varying vec4 position;
varying vec3 lNormal;

#if SHADER_MODEL == 2
  #define MAX_LIGHTS 2
#else
  #define MAX_LIGHTS 8
#endif

#define SPEC_INTENSITY_POINT 5.3 // Point light
#define SPEC_INTENSITY_DIRECTIONAL 3.0 // Directional light
#define SPECULAR_FACTOR 1.75
#define SPECULAR_ALPHA 0.1
#define SPEC_FACTOR_NO_SPEC_MAP 0.6
#define ENV_ALPHA_FACTOR 0.3
#define GLOW_MAP_INTENSITY 1.5
#define AMBIENT_LIGHT_BOOST 1.0

void main()
{
vec3 eyeDir = vec3(normalize(-position).xyz); // Camera is at (0,0,0) in ModelView space
vec4 lightAmbientDiffuse = vec4(0.0, 0.0, 0.0, 1.0);
vec4 lightDiffuse = vec4(0.0, 0.0, 0.0, 1.0);
vec4 lightAmbient = vec4(0.0, 0.0, 0.0, 1.0);
vec4 lightSpecular = vec4(0.0, 0.0, 0.0, 1.0);
vec2 texCoord = gl_TexCoord[0].xy;

 #ifdef FLAG_LIGHT
  #ifdef FLAG_NORMAL_MAP
// Normal map - convert from DXT5nm
vec3 normal;

normal.rg = (texture2D(sNormalmap, texCoord).ag * 2.0) - 1.0;
#ifdef FLAG_ENV_MAP
vec3 envOffset;
envOffset = normal;
        #endif
        normal.b = sqrt(1.0 - dot(normal.rg, normal.rg));
    normal = normalize(tbnMatrix * normal);
  #else
vec3 normal = lNormal;
  #endif

vec3 lightDir;
lightAmbient = gl_FrontMaterial.emission + (gl_LightModel.ambient * gl_FrontMaterial.ambient);

#pragma optionNV unroll all
for (int i = 0; i < MAX_LIGHTS; ++i) {
  #if SHADER_MODEL > 2
if (i > n_lights)
break;
  #endif
float specularIntensity = 1.0;
float attenuation = 1.0;

// Attenuation and light direction
  #if SHADER_MODEL > 2
if (gl_LightSource[i].position.w == 1.0) {
  #else
if (gl_LightSource[i].position.w == 1.0 && i != 0) {
  #endif
// Positional light source
float dist = distance(gl_LightSource[i].position.xyz, position.xyz);

float spotEffect = 1.0;

  #if SHADER_MODEL > 2
if (gl_LightSource[i].spotCutoff < 91.0) {
spotEffect = dot(normalize(gl_LightSource[i].spotDirection), normalize(-position.xyz));

if (spotEffect < gl_LightSource[i].spotCosCutoff) {
spotEffect = 0.0;
}
}
  #endif

attenuation = spotEffect / (gl_LightSource[i].constantAttenuation + (gl_LightSource[i].linearAttenuation * dist) + (gl_LightSource[i].quadraticAttenuation * dist * dist));

lightDir = normalize(gl_LightSource[i].position.xyz - position.xyz);

specularIntensity = SPEC_INTENSITY_POINT; // Point light
} else {
// Directional light source
lightDir = normalize(gl_LightSource[i].position.xyz);

specularIntensity = SPEC_INTENSITY_DIRECTIONAL; // Directional light
}

// Ambient and Diffuse
lightAmbient += (gl_FrontLightProduct[i].ambient * attenuation);
lightDiffuse += ((gl_FrontLightProduct[i].diffuse * max(dot(normal, lightDir), 0.0)) * attenuation);

// Specular
float NdotHV = clamp(dot(normal, normalize(eyeDir + lightDir)), 0.0, 1.0);
lightSpecular += ((gl_FrontLightProduct[i].specular * pow(max(0.0, NdotHV), gl_FrontMaterial.shininess)) * attenuation) * specularIntensity;
}

lightAmbientDiffuse = lightAmbient + lightDiffuse;
 #else
lightAmbientDiffuse = gl_Color;
lightSpecular = gl_SecondaryColor;
 #endif

 #ifdef FLAG_DIFFUSE_MAP
 // Base color
vec4 baseColor = texture2D(sBasemap, texCoord);
 #else
vec4 baseColor = gl_Color;
 #endif
 
vec4 fragmentColor;
fragmentColor.rgb = baseColor.rgb * max(lightAmbientDiffuse.rgb * AMBIENT_LIGHT_BOOST, gl_LightModel.ambient.rgb - 0.425);
fragmentColor.a = baseColor.a;

 #ifdef FLAG_SPEC_MAP
 // Spec color
fragmentColor.rgb += lightSpecular.rgb * (texture2D(sSpecmap, texCoord).rgb * SPECULAR_FACTOR);
fragmentColor.a += (dot(lightSpecular.a, lightSpecular.a) * SPECULAR_ALPHA);
 #else
fragmentColor.rgb += lightSpecular.rgb * (baseColor.rgb * SPEC_FACTOR_NO_SPEC_MAP);
 #endif

 #ifdef FLAG_ENV_MAP
 // Env color
  #ifdef FLAG_NORMAL_MAP
envReflect += envOffset;
  #endif
vec3 envIntensity = (alpha_spec) ? vec3(texture2D(sSpecmap, texCoord).a) : texture2D(sSpecmap, texCoord).rgb;
fragmentColor.a += (dot(textureCube(sEnvmap, envReflect).rgb, textureCube(sEnvmap, envReflect).rgb) * ENV_ALPHA_FACTOR);
fragmentColor.rgb += textureCube(sEnvmap, envReflect).rgb * envIntensity;
 #endif

 #ifdef FLAG_GLOW_MAP
 // Glow color
fragmentColor.rgb += texture2D(sGlowmap, texCoord).rgb * GLOW_MAP_INTENSITY;
 #endif

 #ifdef FLAG_FOG
fragmentColor.rgb = mix(fragmentColor.rgb, gl_Fog.color.rgb, fogDist);
 #endif

gl_FragColor = fragmentColor;
}
« Last Edit: June 29, 2011, 06:24:17 pm by Valathil »
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Offline Kolgena

  • 211
Re: Shaders for the MediaVPs
Epic first post. Welcome to HLP! (Though clearly you've been lurking for some time :))

I assume this is a drop-in replacement for main-f.sdr?
« Last Edit: June 29, 2011, 09:30:05 pm by Kolgena »

 

Offline Valathil

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Re: Shaders for the MediaVPs
Yes exactly this is main-f.sdr. BTW just throwing something out there, has anyone thought of encoding the light information in a small texture instead of the built in opengl lights to overcome the 8 lights limit? I don't know how many lights there are at average in a scene and anything over 20 or 30 will eventually overwhelm the rendering and slow everything to crawl but seeing that there are always new and better gpu's coming out wouldn't a framework to enable an arbitrary number of lights be a step into the future? Would of course require a rewrite of the lighting subsystem to encode the lightdata. Don't know if I have the time for that. Would like to hear some brainstorming about possible performance and if such a feature would be welcome.

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┃┃┏┫┃┏┳━━┓┏━━┓┃┗━┳━━┳━━┳━━┓
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