@Override
public void resize(int width, int height) {
super.resize(width, height);
mWorldState.width = width;
mWorldState.height = height;
mWorldState.rotate = width > height ? 1 : 0;
mScript.set_g_glWidth(mWorldState.width);
mScript.set_g_glHeight(mWorldState.height);
mScript.set_g_rotate(mWorldState.rotate);
mScript.invoke_initLeaves();
Matrix4f proj = new Matrix4f();
proj.loadProjectionNormalized(mWidth, mHeight);
mPvOrthoAlloc.setProjection(proj);
}
private Matrix4f getProjectionNormalized(int w, int h) {
// range -1,1 in the narrow axis at z = 0.
Matrix4f m1 = new Matrix4f();
Matrix4f m2 = new Matrix4f();
if (w > h) {
float aspect = ((float) w) / h;
m1.loadFrustum(-aspect, aspect, -1, 1, 1, 100);
} else {
float aspect = ((float) h) / w;
m1.loadFrustum(-1, 1, -aspect, aspect, 1, 100);
}
m2.loadRotate(180, 0, 1, 0);
m1.loadMultiply(m1, m2);
m2.loadScale(-1, 1, 1);
m1.loadMultiply(m1, m2);
m2.loadTranslate(0, 0, 1);
m1.loadMultiply(m1, m2);
return m1;
}
private void createProgramVertex() {
mPvOrthoAlloc = new ProgramVertexFixedFunction.Constants(mRS);
Matrix4f proj = new Matrix4f();
proj.loadProjectionNormalized(mWidth, mHeight);
mPvOrthoAlloc.setProjection(proj);
ProgramVertexFixedFunction.Builder builder = new ProgramVertexFixedFunction.Builder(mRS);
mPvSky = builder.create();
((ProgramVertexFixedFunction) mPvSky).bindConstants(mPvOrthoAlloc);
mScript.set_g_PVSky(mPvSky);
mConstants = new ScriptField_Constants(mRS, 1);
mUniformAlloc = mConstants.getAllocation();
ProgramVertex.Builder sb = new ProgramVertex.Builder(mRS);
String t =
"\n"
+ "varying vec4 varColor;\n"
+ "varying vec2 varTex0;\n"
+ "vec2 addDrop(vec4 d, vec2 pos, float dxMul) {\n"
+ " vec2 ret = vec2(0.0, 0.0);\n"
+ " vec2 delta = d.xy - pos;\n"
+ " delta.x *= dxMul;\n"
+ " float dist = length(delta);\n"
+ " if (dist < d.w) { \n"
+ " float amp = d.z * dist;\n"
+ " amp /= d.w * d.w;\n"
+ " amp *= sin(d.w - dist);\n"
+ " ret = delta * amp;\n"
+ " }\n"
+ " return ret;\n"
+ "}\n"
+ "void main() {\n"
+ " vec2 pos = ATTRIB_position.xy;\n"
+ " gl_Position = vec4(pos.x, pos.y, 0.0, 1.0);\n"
+ " float dxMul = 1.0;\n"
+ " varTex0 = vec2((pos.x + 1.0), (pos.y + 1.6666));\n"
+ " if (UNI_Rotate < 0.9) {\n"
+ " varTex0.xy *= vec2(0.25, 0.33);\n"
+ " varTex0.x += UNI_Offset.x * 0.5;\n"
+ " pos.x += UNI_Offset.x * 2.0;\n"
+ " } else {\n"
+ " varTex0.xy *= vec2(0.5, 0.3125);\n"
+ " dxMul = 2.5;\n"
+ " }\n"
+ " varColor = vec4(1.0, 1.0, 1.0, 1.0);\n"
+ " pos.xy += vec2(1.0, 1.0);\n"
+ " pos.xy *= vec2(25.0, 42.0);\n"
+ " varTex0.xy += addDrop(UNI_Drop01, pos, dxMul);\n"
+ " varTex0.xy += addDrop(UNI_Drop02, pos, dxMul);\n"
+ " varTex0.xy += addDrop(UNI_Drop03, pos, dxMul);\n"
+ " varTex0.xy += addDrop(UNI_Drop04, pos, dxMul);\n"
+ " varTex0.xy += addDrop(UNI_Drop05, pos, dxMul);\n"
+ " varTex0.xy += addDrop(UNI_Drop06, pos, dxMul);\n"
+ " varTex0.xy += addDrop(UNI_Drop07, pos, dxMul);\n"
+ " varTex0.xy += addDrop(UNI_Drop08, pos, dxMul);\n"
+ " varTex0.xy += addDrop(UNI_Drop09, pos, dxMul);\n"
+ " varTex0.xy += addDrop(UNI_Drop10, pos, dxMul);\n"
+ "}\n";
sb.setShader(t);
sb.addConstant(mUniformAlloc.getType());
sb.addInput(mMesh.getVertexAllocation(0).getType().getElement());
mPvWater = sb.create();
mPvWater.bindConstants(mUniformAlloc, 0);
mScript.set_g_PVWater(mPvWater);
}