/**
* Checks if any {@link IMaterialPlugin}s have been added. If so they will be added to the vertex
* and/or fragment shader.
*
* @param location Where to insert the vertex and/or fragment shader
*/
private void checkForPlugins(PluginInsertLocation location) {
if (mPlugins == null) return;
for (IMaterialPlugin plugin : mPlugins) {
if (plugin.getInsertLocation() == location) {
mVertexShader.addShaderFragment(plugin.getVertexShaderFragment());
mFragmentShader.addShaderFragment(plugin.getFragmentShaderFragment());
}
}
}
/**
* Takes all material parameters and creates the vertex shader and fragment shader and then
* compiles the program. This method should only be called on initialization or when parameters
* have changed.
*/
private void createShaders() {
if (!mIsDirty) return;
if (mCustomVertexShader == null && mCustomFragmentShader == null) {
//
// -- Check textures
//
List<ATexture> diffuseTextures = null;
List<ATexture> normalMapTextures = null;
List<ATexture> envMapTextures = null;
List<ATexture> skyTextures = null;
List<ATexture> specMapTextures = null;
List<ATexture> alphaMapTextures = null;
boolean hasCubeMaps = false;
boolean hasVideoTexture = false;
for (int i = 0; i < mTextureList.size(); i++) {
ATexture texture = mTextureList.get(i);
switch (texture.getTextureType()) {
case VIDEO_TEXTURE:
hasVideoTexture = true;
// no break statement, add the video texture to the diffuse textures
case DIFFUSE:
case RENDER_TARGET:
if (diffuseTextures == null) diffuseTextures = new ArrayList<ATexture>();
diffuseTextures.add(texture);
break;
case NORMAL:
if (normalMapTextures == null) normalMapTextures = new ArrayList<ATexture>();
normalMapTextures.add(texture);
break;
case CUBE_MAP:
hasCubeMaps = true;
case SPHERE_MAP:
boolean isSkyTexture = false;
boolean isEnvironmentTexture = false;
if (texture.getClass() == SphereMapTexture.class) {
isSkyTexture = ((SphereMapTexture) texture).isSkyTexture();
isEnvironmentTexture = ((SphereMapTexture) texture).isEnvironmentTexture();
} else if (texture.getClass() == CubeMapTexture.class) {
isSkyTexture = ((CubeMapTexture) texture).isSkyTexture();
isEnvironmentTexture = ((CubeMapTexture) texture).isEnvironmentTexture();
}
if (isSkyTexture) {
if (skyTextures == null) skyTextures = new ArrayList<ATexture>();
skyTextures.add(texture);
} else if (isEnvironmentTexture) {
if (envMapTextures == null) envMapTextures = new ArrayList<ATexture>();
envMapTextures.add(texture);
}
break;
case SPECULAR:
if (specMapTextures == null) specMapTextures = new ArrayList<ATexture>();
specMapTextures.add(texture);
break;
case ALPHA:
if (alphaMapTextures == null) alphaMapTextures = new ArrayList<ATexture>();
alphaMapTextures.add(texture);
break;
default:
break;
}
}
mVertexShader = new VertexShader();
mVertexShader.enableTime(mTimeEnabled);
mVertexShader.hasCubeMaps(hasCubeMaps);
mVertexShader.useVertexColors(mUseVertexColors);
mVertexShader.initialize();
mFragmentShader = new FragmentShader();
mFragmentShader.enableTime(mTimeEnabled);
mFragmentShader.hasCubeMaps(hasCubeMaps);
mFragmentShader.initialize();
if (diffuseTextures != null && diffuseTextures.size() > 0) {
DiffuseTextureFragmentShaderFragment fragment =
new DiffuseTextureFragmentShaderFragment(diffuseTextures);
mFragmentShader.addShaderFragment(fragment);
}
if (normalMapTextures != null && normalMapTextures.size() > 0) {
NormalMapFragmentShaderFragment fragment =
new NormalMapFragmentShaderFragment(normalMapTextures);
mFragmentShader.addShaderFragment(fragment);
}
if (envMapTextures != null && envMapTextures.size() > 0) {
EnvironmentMapFragmentShaderFragment fragment =
new EnvironmentMapFragmentShaderFragment(envMapTextures);
mFragmentShader.addShaderFragment(fragment);
}
if (skyTextures != null && skyTextures.size() > 0) {
SkyTextureFragmentShaderFragment fragment =
new SkyTextureFragmentShaderFragment(skyTextures);
mFragmentShader.addShaderFragment(fragment);
}
if (hasVideoTexture)
mFragmentShader.addPreprocessorDirective("#extension GL_OES_EGL_image_external : require");
checkForPlugins(PluginInsertLocation.PRE_LIGHTING);
//
// -- Lighting
//
if (mLightingEnabled && mLights != null && mLights.size() > 0) {
mVertexShader.setLights(mLights);
mFragmentShader.setLights(mLights);
mLightsVertexShaderFragment = new LightsVertexShaderFragment(mLights);
mLightsVertexShaderFragment.setAmbientColor(mAmbientColor);
mLightsVertexShaderFragment.setAmbientIntensity(mAmbientIntensity);
mVertexShader.addShaderFragment(mLightsVertexShaderFragment);
mFragmentShader.addShaderFragment(new LightsFragmentShaderFragment(mLights));
checkForPlugins(PluginInsertLocation.PRE_DIFFUSE);
//
// -- Diffuse method
//
if (mDiffuseMethod != null) {
mDiffuseMethod.setLights(mLights);
IShaderFragment fragment = mDiffuseMethod.getVertexShaderFragment();
if (fragment != null) mVertexShader.addShaderFragment(fragment);
fragment = mDiffuseMethod.getFragmentShaderFragment();
mFragmentShader.addShaderFragment(fragment);
}
checkForPlugins(PluginInsertLocation.PRE_SPECULAR);
//
// -- Specular method
//
if (mSpecularMethod != null) {
mSpecularMethod.setLights(mLights);
mSpecularMethod.setTextures(specMapTextures);
IShaderFragment fragment = mSpecularMethod.getVertexShaderFragment();
if (fragment != null) mVertexShader.addShaderFragment(fragment);
fragment = mSpecularMethod.getFragmentShaderFragment();
if (fragment != null) mFragmentShader.addShaderFragment(fragment);
}
}
checkForPlugins(PluginInsertLocation.PRE_ALPHA);
if (alphaMapTextures != null && alphaMapTextures.size() > 0) {
AlphaMapFragmentShaderFragment fragment =
new AlphaMapFragmentShaderFragment(alphaMapTextures);
mFragmentShader.addShaderFragment(fragment);
}
checkForPlugins(PluginInsertLocation.PRE_TRANSFORM);
checkForPlugins(PluginInsertLocation.POST_TRANSFORM);
mVertexShader.buildShader();
mFragmentShader.buildShader();
} else {
mVertexShader = mCustomVertexShader;
mFragmentShader = mCustomFragmentShader;
if (mVertexShader.needsBuild()) mVertexShader.initialize();
if (mFragmentShader.needsBuild()) mFragmentShader.initialize();
if (mVertexShader.needsBuild()) mVertexShader.buildShader();
if (mFragmentShader.needsBuild()) mFragmentShader.buildShader();
}
if (debug) {
RajLog.d("-=-=-=- VERTEX SHADER -=-=-=-");
RajLog.d(mVertexShader.getShaderString());
RajLog.d("-=-=-=- FRAGMENT SHADER -=-=-=-");
RajLog.d(mFragmentShader.getShaderString());
}
mProgramHandle =
createProgram(mVertexShader.getShaderString(), mFragmentShader.getShaderString());
if (mProgramHandle == 0) {
mIsDirty = false;
return;
}
mVertexShader.setLocations(mProgramHandle);
mFragmentShader.setLocations(mProgramHandle);
for (int i = 0; i < mTextureList.size(); i++) {
ATexture texture = mTextureList.get(i);
setTextureParameters(texture);
}
mIsDirty = false;
}