Gulum/WebOcean
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Change render target to 16bit

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Julian
2020-01-27 01:39:10 +01:00
parent 03467fc70b
commit a6526c28e4
2 changed files with 7 additions and 6 deletions
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11
src/main.ts
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@@ -24,10 +24,11 @@ function initGL(canvas: HTMLCanvasElement) {
alert("Unable to initialize WebGL. Your browser or machine may not support it.");
}
gl = <WebGL2RenderingContext>gltemp;
//WebGL2 supports floating point textures by default but it does not support filtering them or rendering to them by default.
gl.getExtension( 'EXT_color_buffer_float' ); //allow 32bit texture as framebuffer target
gl.getExtension( 'OES_texture_float_linear' ); //allow linear filtering
//WebGL2 supports floating point textures by default but it does not support filtering them or rendering to them by default. Note: 16bit filtering is included
if (!gl.getExtension('EXT_color_buffer_float')) {
console.log("32Bit render Buffers not available.")
} //allow 32bit texture as framebuffer target
gl.enable(gl.DEPTH_TEST);
}
@@ -220,7 +221,7 @@ function initFBO() {
// Add attachments
textureFBO = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, textureFBO); //last 3 parameter not intertesting becuase we are not supplying data
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA32F, perlinNoiseFBOWidth, ferlinNoiseFBOHeight, 0, gl.RGBA, gl.FLOAT, null);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.R16F, perlinNoiseFBOWidth, ferlinNoiseFBOHeight, 0, gl.RED, gl.HALF_FLOAT, null);
// set the filtering so we don't need mips
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);