mdx-m3-viewer
Version:
A browser WebGL model viewer. Mainly focused on models of the games Warcraft 3 and Starcraft 2.
33 lines • 1.58 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
/**
* An M3 region.
*/
class M3Region {
constructor(model, region, triangles, elementArray, offset) {
const firstVertexIndex = region.firstVertexIndex;
const triangleIndicesCount = region.triangleIndicesCount;
const firstTriangleIndex = region.firstTriangleIndex;
// Note for implementors: the one original vertex indices array could be used with access to the base-vertex draw elements function.
// See https://www.opengl.org/sdk/docs/man3/xhtml/glDrawElementsBaseVertex.xml
// firstTriangleIndex is the indices offset.
// firstVertexIndex is the base vertex.
for (let i = 0; i < triangleIndicesCount; i++) {
elementArray[offset + i] = triangles[firstTriangleIndex + i] + firstVertexIndex;
}
this.gl = model.viewer.gl;
this.firstBoneLookupIndex = region.firstBoneLookupIndex;
this.boneWeightPairsCount = region.boneWeightPairsCount;
this.offset = offset * 2;
this.verticesCount = region.verticesCount;
this.elements = triangleIndicesCount;
}
render(shader) {
const gl = this.gl;
gl.uniform1f(shader.uniforms['u_firstBoneLookupIndex'], this.firstBoneLookupIndex);
gl.uniform1f(shader.uniforms['u_boneWeightPairsCount'], this.boneWeightPairsCount);
gl.drawElements(gl.TRIANGLES, this.elements, gl.UNSIGNED_SHORT, this.offset);
}
}
exports.default = M3Region;
//# sourceMappingURL=region.js.map