loadPrcFileData("", "textures-power-2 none")
import os
import direct.directbase.DirectStart
from Code.Globals import Globals
Globals.load(base)
from Code.RenderTarget import RenderTarget
import shutil
sz = 2048
target = RenderTarget()
target.setSize(sz, sz)
target.addColorTexture()
target.setColorBits(16)
target.prepareOffscreenBuffer()
vertex_shader = """
#version 400
uniform mat4 p3d_ModelViewProjectionMatrix;
in vec4 p3d_Vertex;
out vec2 texcoord;
void main() {
gl_Position = vec4(p3d_Vertex.x, p3d_Vertex.z, 0, 1);
// vec3 cubeColor = texture(sourceMap, direction).xyz;
resultColor = vec4(sum, 1);
}
"""
shader = Shader.make(Shader.SLGLSL, vertexShader, fragmentShader)
size = 1024
mipidx = 0
blurF = 0.5
while size > 1:
size /= 2
blurF *= 1.5
target = RenderTarget("precompute cubemap")
target.addColorTexture()
target.setSize(size, size)
target.prepareOffscreenBuffer()
stex = target.getColorTexture()
target.setShader(shader)
target.setShaderInput("sourceMap", envmap)
target.setShaderInput("mipIndex", mipidx)
target.setShaderInput("blurFactor", blurF)
for i in xrange(6):
print "Generating face", i, "for mipmap", mipidx
target.setShaderInput("directionIndex", i)
