Forums - errno 35 + no texture on Adreno 610 Device

 

Anyway, I've basically adapted the following implementation: https://bruop.github.io/ibl/. I've tested it on two Mali devices, and it works for both of them, but not for the Adreno device. Specifically the double for-loop in section "Lambertian Diffuse Component" along with the `textureLod()` call seems to be what is causing the crash. I can circumvent it by using a larger step size, but now the problem is that I get a black texture as output (again, it works for Mali).

 

Here is the loop:

for(float phi = 0.0; phi < TWO_PI; phi += deltaPhi) {
    for(float theta = 0.0; theta < HALF_PI; theta += deltaTheta) {
        vec3 tempVec = cos(phi) * right + sin(phi) * up;
        vec3 sampleVec = cos(theta) * normal + sin(theta) * tempVec;

        irradiance += textureLod(u_environmentMap, sampleVec, 0.0).rgb * cos(theta) * sin(theta);
        sampleCount++;
    }
}

 

TheOpenGL setup:

val size = irradianceMapSize

glGenTextures(1, irradianceMap, 0)
glBindTexture(GL_TEXTURE_CUBE_MAP, irradianceMap[0])
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE)
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE)
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE)
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glTexStorage2D(GL_TEXTURE_CUBE_MAP, 1, GL_RGBA16F, size, size)
glBindImageTexture(1, irradianceMap[0], 0, true, 0, GL_WRITE_ONLY, GL_RGBA16F)

// Dispatch compute
glUseProgram(irradianceShaderProgram)

val imageSizeLoc = glGetUniformLocation(irradianceShaderProgram, "u_imageSize")
glUniform1f(imageSizeLoc, size.toFloat())

glActiveTexture(GL_TEXTURE0 + 0)
glBindTexture(GL_TEXTURE_CUBE_MAP, environmentMap[0])

glDispatchCompute(size / 4, size / 4, 1)
glMemoryBarrier(GL_SHADER_IMAGE_ACCESS_BARRIER_BIT)

 

If you need more details or resources such as an .apk file or RenderDoc captures for broken and working versions, I can provide those.

 

Edit:

Looking at the RenderDoc captures again, it seems that the creation of `environmentMap` (the cubemap for the skybox) results in a black texture.

 

This is a minimalistic example (with large step sizes), in which on a Mali device I will get a fully red skybox, whereas on the Adreno device it'll be all black:

 

Compute shader ("toCubemapShaderProgram"): 

#version 320 es

layout (local_size_x = 4, local_size_y = 4, local_size_z = 6) in;

layout (rgba16f, binding = 1) writeonly uniform highp image2DArray u_target;

void main() {
    imageStore(u_target, ivec3(gl_GlobalInvocationID.xyz), vec4(1.0, 0.0, 0.0, 1.0)); 

 

OpenGL setup (size == 512):

val size = environmentMapSize
val maxMipLevel = log2(size.toFloat()).toInt()

glGenTextures(1, environmentMap, 0)
glBindTexture(GL_TEXTURE_CUBE_MAP, environmentMap[0])
glTexStorage2D(GL_TEXTURE_CUBE_MAP, maxMipLevel + 1, GL_RGBA16F, size, size)
glBindImageTexture(1, environmentMap[0], 0, true, 0, GL_WRITE_ONLY, GL_RGBA16F)

glUseProgram(toCubemapShaderProgram)

glDispatchCompute(size / 4, size / 4, 1)
glMemoryBarrier(GL_SHADER_IMAGE_ACCESS_BARRIER_BIT)

glGenerateMipmap(GL_TEXTURE_CUBE_MAP)