43 lines
824 B
JavaScript
43 lines
824 B
JavaScript
import { shaderInfos } from "../3D/shaders.js"
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function renderCube(ctx, x, y, z, angle = 0, sx = 1, sy = 1, sz = 1)
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{
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const modelMatrix = mat4.create();
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mat4.translate(
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modelMatrix,
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modelMatrix,
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[x, y, z]
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);
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mat4.rotate(
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modelMatrix,
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modelMatrix,
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angle,
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[0, 1, 0],
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);
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mat4.scale(
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modelMatrix,
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modelMatrix,
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[sx, sy, sz]
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);
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mat4.translate(
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modelMatrix,
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modelMatrix,
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[-1, 0, 0] // wtf, this works ?
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);
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const normalMatrix = mat4.create();
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mat4.invert(normalMatrix, modelMatrix);
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mat4.transpose(normalMatrix, normalMatrix);
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ctx.uniformMatrix4fv(shaderInfos.uniformLocations.modelMatrix, false, modelMatrix);
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ctx.uniformMatrix4fv(shaderInfos.uniformLocations.normalMatrix, false, normalMatrix);
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ctx.drawElements(ctx.TRIANGLES, 36, ctx.UNSIGNED_SHORT, 0);
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}
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export { renderCube };
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